I-15 weather conditions near Sweet Grass, Montana
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Today 2025-09-04, Mostly Sunny and Breezy then Sunny. Mostly sunny, with a high near 67. Breezy, with a north wind 18 to 24 mph, with gusts as high as 31 mph.
Tonight 2025-09-04, Mostly Clear. Mostly clear, with a low around 39. North wind 12 to 17 mph becoming light and variable after midnight. Winds could gust as high as 23 mph.
Friday 2025-09-05, Sunny. Sunny, with a high near 71. Calm wind becoming south southeast around 6 mph in the morning.- Friday Night 2025-09-05, Mostly Clear. Mostly clear, with a low around 40. East wind 6 to 8 mph becoming south southeast after midnight.
Saturday 2025-09-06, Sunny. Sunny, with a high near 75. South southeast wind 7 to 14 mph, with gusts as high as 21 mph.
Saturday Night 2025-09-06, Partly Cloudy. Partly cloudy, with a low around 45. Southeast wind 9 to 13 mph, with gusts as high as 18 mph.
Sunday 2025-09-07, Mostly Sunny. Mostly sunny, with a high near 82. South wind 8 to 10 mph.
Sunday Night 2025-09-07, Mostly Cloudy. Mostly cloudy, with a low around 53. South southeast wind 7 to 10 mph becoming southwest after midnight.- Monday 2025-09-08, Mostly Sunny. Mostly sunny, with a high near 82.
- Monday Night 2025-09-08, Mostly Cloudy. Mostly cloudy, with a low around 52.
Tuesday 2025-09-09, Chance Showers. A chance of showers. Partly sunny, with a high near 77.
Tuesday Night 2025-09-09, Chance Showers. A chance of showers. Mostly cloudy, with a low around 49.- Wednesday 2025-09-10, Chance Showers. A chance of showers and thunderstorms. Partly sunny, with a high near 72.